/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package tests.api.java.io;
import java.io.BufferedOutputStream;
import java.io.File;
import java.io.FileDescriptor;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.RandomAccessFile;
public class FileDescriptorTest extends junit.framework.TestCase {
private static String platformId = "JDK"
+ System.getProperty("java.vm.version").replace('.', '-');
FileOutputStream fos;
BufferedOutputStream os;
FileInputStream fis;
File f;
/**
* @tests java.io.FileDescriptor#FileDescriptor()
*/
public void test_Constructor() {
// Test for method java.io.FileDescriptor()
FileDescriptor fd = new FileDescriptor();
assertTrue("Failed to create FileDescriptor",
fd instanceof FileDescriptor);
}
/**
* @tests java.io.FileDescriptor#sync()
*/
public void test_sync() throws Exception {
// Test for method void java.io.FileDescriptor.sync()
f = new File(System.getProperty("user.dir"), "fd" + platformId + ".tst");
f.delete();
fos = new FileOutputStream(f.getPath());
fos.write("Test String".getBytes());
fis = new FileInputStream(f.getPath());
FileDescriptor fd = fos.getFD();
fd.sync();
int length = "Test String".length();
assertEquals("Bytes were not written after sync", length, fis
.available());
// Regression test for Harmony-1494
fd = fis.getFD();
fd.sync();
assertEquals("Bytes were not written after sync", length, fis
.available());
RandomAccessFile raf = new RandomAccessFile(f, "r");
fd = raf.getFD();
fd.sync();
raf.close();
}
/**
* @tests java.io.FileDescriptor#valid()
*/
public void test_valid() throws Exception {
// Test for method boolean java.io.FileDescriptor.valid()
f = new File(System.getProperty("user.dir"), "fd.tst");
f.delete();
os = new BufferedOutputStream(fos = new FileOutputStream(f
.getPath()), 4096);
FileDescriptor fd = fos.getFD();
assertTrue("Valid fd returned false", fd.valid());
os.close();
assertTrue("Invalid fd returned true", !fd.valid());
}
/**
* Sets up the fixture, for example, open a network connection. This method
* is called before a test is executed.
*/
protected void setUp() {
}
/**
* Tears down the fixture, for example, close a network connection. This
* method is called after a test is executed.
*/
protected void tearDown() {
try {
os.close();
} catch (Exception e) {
}
try {
fis.close();
} catch (Exception e) {
}
try {
fos.close();
} catch (Exception e) {
}
try {
f.delete();
} catch (Exception e) {
}
}
protected void doneSuite() {
}
}